Footwear sole



FIG. 1 is a perspective view of a footwear sole embodying the new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a rear elevational view thereof.

The top of the footwear sole is unornamented. 

The ornamental design for footwear sole, as shown and described. 